Application of Psidium Guajava Leaf Extract as an Organic Inhibitor in Acid Solution and Temperature Variation

Abstract:

Corrosion is a change in the properties of a material, mainly metal, due to a reaction with the surrounding environment. One of The ways to inhibit corrosion is by adding inhibitors. Organic inhibitors are inhibitors that are considered environmentally friendly. In this study, the guava leaf extract of Psidium guajava was used as an organic inhibitor. Materials used are API 5L Grade B steel in 1M HCl solution as corrosive media with the concentration of the extract used in this study 1188ppm with a temperature variation of 30, 35, 40, 45, and 50 Celcius degrees. The types of tests carried out in this study were Electrochemical Impedance Spectroscopy and Potentiodynamic Polarization. The results of the potentiodynamic polarization test of organic inhibitors obtained an efficiency of 96.7550% with a corrosion rate of 1,04460 mm/year at a temperature of 30 degrees Celsius. In the electrochemical impedance spectroscopy test, the efficiency was 96,8546%, at a temperature of 30 degrees Celsius. The results of this study showed that the inhibitor of organic Psidium Guajava extract was The higher the temperature given to the inhibitor, it does not significantly affect the efficiency of the inhibitor, which acts the corrosion rate.

• Periodical: Key Engineering Materials (Volume 940)
• Pages: 101-106
• DOI: https://doi.org/10.4028/p-1b8mqs
• Online since: January 2023
• Authors: Atria Pradityana*, Eddy Widiyono, Hari Subiyanto, Nur Husodo, Muhammad Saiful Rizal
• Keywords: API 5LGrade B, HCL, Inhibitor, Psidium guajava Leaf, Temperature

References

[1] Jones, Denny A. Principles and Prevention of Corrosion. New York: Macmillan Pub. Co, (1992).

[2] Pradityana A, Husodo N, Ash-Shiddieqy RH, Rizal MS (2021) Analysis of corrosion rate at bone implant replacement materials with immersion time variations in simulated body fluid. IOP Conf Ser: Mater Sci Eng 1034:012153.

DOI: 10.1088/1757-899x/1034/1/012153

[3] Koch, gerhardus, Varney, jeff, Thompson, N., Moghisso, O., Gould, M., & Payer, J. (2016). international measures of prevention application and economics of corrosion technologies study. http://impact.nace.org/documents/Nace-International-Report.pdf.

[4] Talib NAA, Zakaria S, Hua CC, Othman NK (2014) Tannin bark Melalauca cajuputi powell (gelam) as green corrosion inhibitor of mild steel. AIP Publishing LLC.

DOI: 10.1063/1.4895191

[5] Pradityana A, Subowo, Subiyanto H, Widiyono E, Gathot DW (2020) Application of Seeds from Psidium Guajava as Organic Inhibitor. KEM 867:103–108.

DOI: 10.4028/www.scientific.net/kem.867.103

[6] Kurniawan F, Madurani KA (2015) Electrochemical and optical microscopy study of red pepper seed oil corrosion inhibition by self-assembled monolayers (SAM) on 304 SS. Progress in Organic Coatings 88:256–262.

DOI: 10.1016/j.porgcoat.2015.07.010

[7] Al-Akhras N, Mashaqbeh Y (2021) Potential use of eucalyptus leaves as green corrosion inhibitor of steel reinforcement. Journal of Building Engineering 35:101848.

DOI: 10.1016/j.jobe.2020.101848

[8] Raja PB, Sethuraman MG (2008) Natural products as corrosion inhibitor for metals in corrosive media — A review. Materials Letters 62:113–116.

DOI: 10.1016/j.matlet.2007.04.079

[9] Ismail AS, Farag AA (2020) Experimental, theoretical and simulation studies of extracted crab waste protein as a green polymer inhibitor for carbon steel corrosion in 2 M H3PO4. Surfaces and Interfaces 19:100483.

DOI: 10.1016/j.surfin.2020.100483

[10] Kurniawan F, Tsakova V, Mirsky VM (2006) Gold Nanoparticles in Nonenzymatic Electrochemical Detection of Sugars. Electroanalysis 18:1937–(1942).

DOI: 10.1002/elan.200603607

[11] Pradityana A, Sulistijono, Shahab A, et al (2016) Inhibition of Corrosion of Carbon Steel in 3.5% NaCl Solution byMyrmecodia PendansExtract. International Journal of Corrosion 2016:1–6.

DOI: 10.1155/2016/6058286